<body style="text-align: center;padding: 200px;">
    <p>正在提取：<b><i>erwerwewr</i></b>&nbsp;&nbsp;请输入提取码...</p>
    <input id="fetchCode" type="text"></input><button type="submit" onclick="fetch()">提取</button>
    <script>
        function fetch(){
            window.location.href = window.location+"&fetchCode="+document.getElementById("fetchCode").value;
        }
    </script>
</body>

